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A dog running in an open field has components of velocity vx= 3.2m/s and vy = -1.6 at time t= 10.4s . For the time interval from t1= 10.4s to = 19.3s , the average acceleration of the dog has magnitude 0.43m/s^2 and direction 30.0 measured from the +x-axis toward the +y-axis . At time t2= 19.3s , what are the x-component of the dog's velocity? 2-At time = 19.3s , what are the y-component of the dog's velocity? 3-What is the magnitude of the dog's velocity? 4- What is the direction of the dog's velocity (measured from the +x-y axis toward the +y-axis)?
A 20.0 ?, 9.00 ?, and 9.00 ? resistor are connected in parallel to an emf source. A current of 6.00 A is in the 9.00 ? resistor. Calculate the equivalent resistance of the circuit
A panicular spring has a spring constant of 86 N/m and a mass of 0.548 kg at its end. When the spring is driven in a viscous medium, find the damping parameter due to the viscous medium
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. How long was the ball in flight
A lens forms an image of an object. The object is 16.0 cm from the lens. is it erect or inverted
the snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. Find out the acceleration of the sled and child.
A screw with 25 threads per centimeter is driven 1.49 cm into its fixture in 12.4 s with a cordless electric screwdriver. What is the average angular speed of the screwdriver
The classical picture of the hydrogen atom has a single electron in orbit a distance 0.0529nm from the proton. Calculate the electric potential associated with the proton's electric field at this distance.
Your 300 ml cup of coffee is too hot to drink when served at 92C.What is the mass of an ice cube, taken from a -19C freezer, that will cool your coffee to a pleasant 61C.
q1. sea launch mission planners are going to launch their russian launch vehicle from a lo 3 degrees into leo with an
The space between the plates of a capacitor is filled with water. By what factor does the water change the capacitance relative to that found when the plates are filled with air?
Moving in the x direction, a particle carrying 1.0 m C experiences no force. What magnetic force would it experience if it moved along the y axis with speed v
A rope 3.4 m long has a mass of 0.85 kg. The tension in the rope is 51.0 N. What is the frequency of the power source if the power transmitted is 118 W
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